{
  "id": "1912.12488",
  "version": "v1",
  "published": "2019-12-28T17:11:53.000Z",
  "updated": "2019-12-28T17:11:53.000Z",
  "title": "Quantum simulation of coherent backscattering in a system of superconducting qubits",
  "authors": [
    "Ana Laura Gramajo",
    "Dan Campbell",
    "Bharath Kannan",
    "David K. Kim",
    "Alexander Melville",
    "Bethany M. Niedzielski",
    "Jonilyn L. Yoder",
    "María José Sánchez",
    "Daniel Domínguez",
    "Simon Gustavsson",
    "William D. Oliver"
  ],
  "comment": "14 pages, 5 figures",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "In condensed matter systems, coherent backscattering and quantum interference in the presence of time-reversal symmetry lead to well-known phenomena such as weak localization (WL) and universal conductance fluctuations (UCF). Here we use multi-pass Landau-Zener transitions at the avoided crossing of a highly-coherent superconducting qubit to emulate these phenomena. The average and standard deviation of the qubit transition rate exhibit a dip and peak when the driving waveform is time-reversal symmetric, corresponding to WL and UCF, respectively. The higher coherence of this qubit enabled the realization of both effects, in contrast to earlier work arXiv:1204.6428, which successfully emulated UCF, but did not observe WL. This demonstration illustrates the use of non-adiabatic control to implement quantum emulation with superconducting qubits.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-12-28T17:11:53.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum simulation",
      "coherent backscattering",
      "multi-pass landau-zener transitions",
      "universal conductance fluctuations",
      "qubit transition rate"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}